If you are using Atape on AIX only the primary path needs to be defined
IF you have enabled alternate pathing.
"chdev -l rmt5 -aalt_pathing=yes"
See IBM "IBM Tape Device Drivers Installation and User's Guide"  PG 31,
Pub GC27-2130-02
It works like a champ on AIX.  Can't vouch for other platforms.



Neil Strand
Storage Engineer - Legg Mason
Baltimore, MD.
(410) 580-7491
Whatever you can do or believe you can, begin it.
Boldness has genius, power and magic.


-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Gee, Norman
Sent: Thursday, February 07, 2008 12:43 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: [ADSM-L] Question on TSM environment sizes


Does one need to define all the drive paths for multipath tape drives?
Or does one only need to define one path and the OS will use the other
paths as needed?

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Strand, Neil B.
Sent: Wednesday, February 06, 2008 4:22 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: Question on TSM environment sizes

1900 drive path statements?
13 Libclients x 72 Drives = 936 paths + 72 for the lib mgr



Neil Strand
Storage Engineer - Legg Mason
Baltimore, MD.
(410) 580-7491
Whatever you can do or believe you can, begin it.
Boldness has genius, power and magic.

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